Chapter 1: Cell Biology
Lesson 10: Stem cell banks Lesson overview AQA Specification reference AQA 4.1.2.3
Learning objectives • Explore the use of stem cells in medicine. • Identify the risks in using stem cells. • Evaluate the benefits and disadvantages of using stem cells.
Learning outcomes • Explain the uses of stem cells in medicine. [O1] • Describe what is meant by the term ‘therapeutic cloning’. [O2] • Explain the advantages and disadvantages in using different techniques for producing stem cells. [O3]
Skills development • WS 1.3 Appreciate the power and limitations of science and consider any ethical issues which may arise. • WS 1.4 Explain everyday and technological applications of science; evaluate associated personal, social, economic and environmental implications; and make decisions based on the evaluation of evidence and arguments. • WS 4.1 Use scientific vocabulary, terminology and definitions. Resources needed Worksheet 1.10 Digital resources Presentation 1.10 Key vocabulary donor, gene, mutation, therapeutic cloning, umbilical cord
Teaching and learning Engage • Ask students to write their own true and false statements about stem cells from the previous lesson. [O1] • Ask students to complete the first activity on Worksheet 1.10. They should identify the similarities and differences between stem cells from embryos, plants and from adult humans. [O1]
Explain • Students should write a letter to their local MP either to support or to argue against the use of stem cells (second activity on the worksheet). They should support their arguments with evidence from the last two lessons. They should explain how stem cells are available from different sources. [O2, O3]
Consolidate and apply
Challenge and develop •
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• Ask students to work in small groups. They should imagine that they will provide a significant sum of Show students the video on using stem cells to money to sponsor scientific developments. Ask them make new heart muscle cells to recap the benefits to justify which cause it will go to: adult or of using stem cells www.eusem.com (search terms: embryonic stem cell development? Students should ‘ComScience’, ‘events’ and ‘stem cells’). [O1] explain why they have not chosen to sponsor Show students the PowerPoint slides on the uses development in stem cell technology from the other of umbilical cord and therapeutic cloning as area. [O1, O2, O3] alternative sources for the production of stem cells, Extend rather than using human embryos. [O1, O2] Ask students who are able to progress further, to: Provide students with a card sort on stem cells and • research the legislation surrounding the use of their uses. Ask them to group the cards into stem cells and explain why this has changed over common areas. [O1, O2, O3] the years. Students could evaluate the impact this In small groups, students should use the card sort has had on scientific developments and ethical to produce a list of benefits and risks for the use considerations. [O2, O3] of different types of stem cells. [O3]
AQA GCSE Biology: Trilogy: Teacher Pack
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